630776 has 16 divisors (see below), whose sum is σ = 1215240. Its totient is φ = 306720.

The previous prime is 630737. The next prime is 630797. The reversal of 630776 is 677036.

630776 = 191² + 192² + ... + 206².

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 770 + ... + 1361.

2⁶³⁰⁷⁷⁶ is an apocalyptic number.

It is an amenable number.

630776 is a deficient number, since it is larger than the sum of its proper divisors (584464).

630776 is a wasteful number, since it uses less digits than its factorization.

630776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2174 (or 2170 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 29.

The square root of 630776 is about 794.2140769339. The cubic root of 630776 is about 85.7613720125.

The spelling of 630776 in words is "six hundred thirty thousand, seven hundred seventy-six".